diff --git a/oap-server/server-alarm-plugin/src/main/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRule.java b/oap-server/server-alarm-plugin/src/main/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRule.java
index b1b25dfbd..e13be47bf 100644
--- a/oap-server/server-alarm-plugin/src/main/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRule.java
+++ b/oap-server/server-alarm-plugin/src/main/java/org/apache/skywalking/oap/server/core/alarm/provider/RunningRule.java
@@ -29,8 +29,6 @@ import org.apache.skywalking.oap.server.core.analysis.indicator.Indicator;
 import org.apache.skywalking.oap.server.core.analysis.indicator.IntValueHolder;
 import org.apache.skywalking.oap.server.core.analysis.indicator.LongValueHolder;
 import org.apache.skywalking.oap.server.core.source.Scope;
-import org.apache.skywalking.oap.server.core.storage.StorageBuilder;
-import org.apache.skywalking.oap.server.core.storage.annotation.StorageEntityAnnotationUtils;
 import org.joda.time.LocalDateTime;
 import org.joda.time.Minutes;
 import org.joda.time.format.DateTimeFormat;